Photoresist Chemicals 2-Propenoic acid, ethyl ester, polymer with 2-methyl-2-propenoic acid and 1,2-benzenedicarboxylic acid, di-2-propenyl ester, ammonium salt Cas:67827-78-5 Molecular Formula:2-Propenoic acid, ethyl ester, polymer with 2-methyl-2-propenoic acid and 1,2-benzenedicarboxylic acid, di-2-propenyl ester, ammonium salt